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Dairy Cattle And Reproduction

Subjects : industries, dairy
Instructions:
  • Answer 50 questions in 15 minutes.
  • If you are not ready to take this test, you can study here.
  • Match each statement with the correct term.
  • Don't refresh. All questions and answers are randomly picked and ordered every time you load a test.

This is a study tool. The 3 wrong answers for each question are randomly chosen from answers to other questions. So, you might find at times the answers obvious, but you will see it re-enforces your understanding as you take the test each time.
1. Serves as a bone cradle for the reproductive system. used greatly in palpation as a 'landmark'.






2. Look for infection - split - and rupture of the penis






3. Not being bred back into herd. horses are seasonal breeders vs. cows as anytime breeders






4. What makes the milk flow through the mammary glands?






5. (male) pushes the testes outward toward the legs for a cool-down off of the body






6. Organ of copulation - provides passageway for semen and urine - muscular organ characterized especially by its spongy - erectile tissue that fills with blood






7. Days which have increasing daylight hours


8. 1. visual evaluation - 2. scrotal circumference - 3. penis and prepuce observation - 4. rectal palpation - 5. libido test - 6. semen evaluation






9. 1. reproduction - 2. mastitis/udder problems - 3. low milk production - 4. soundness/poor feet and legs (living on concrete)






10. BST given to dairy cattle makes the mammary gland more persistent - helps produce more milk. good as Long-term because it does not cause cow to bulk up - provides more milk/cow Which means less cows needed - less cows need to be given feed - lower co






11. (male) pushes the testes upward toward the body for warmth or protection






12. 2 month growth cycle. stored in the epididymis of the bull






13. Cycle that lasts weeks (ovulation->hormone cycles->ovulation)






14. Days which have increasing daylight hours


15. Largest dairy cow - largest udder - highly vascular - eat 40-50% dry matter (eat alot) - most total butterfat






16. 19-23 (21) days






17. 1. visual evaluation - 2. scrotal circumference - 3. penis and prepuce observation - 4. rectal palpation - 5. libido test - 6. semen evaluation






18. Birthing process (termination of gestation)






19. So when offspring are born - there is more food to be found for energy stores and fat deposits IN THE SPRING






20. Contains and regulates the temp of the testes for sperm production






21. When she is pregnant in her last trimester because she needs the energy to carry around and deliver the calf. and when the calf is born because the cow needs the fat to be deposit it into her milk for the calf's energy stores.






22. Not under a timeline - cow can not be sold as steak






23. Cleans and lubricates the urethra ahead of the sperm. (if not - the urine in the urethra has a high salt content and would cause sperm to rupture and die)






24. Animals which have only one estrous cycle (ex: dog - fox)






25. 16-20 hours






26. Examine accessory glands - also to know how big the pelvic opening is->heritable->relates to how much dystocia that bull's daughter has






27. Supply nutrients for the sperm following ejaculation and deposition into the female reproductive tract






28. (male) definition: duct located outside of the testes. 3 parts: head - body - tail. 4 Functions:concentrate sperm - store sperm - transport sperm - site of sperm maturation. entire process takes ~40-60 days






29. 1-2 days






30. 2 month growth cycle. stored in the epididymis of the bull






31. Serves as a bone cradle for the reproductive system. used greatly in palpation as a 'landmark'.






32. (male) Primary sex organ - produces sperm (male gamete) and male sex hormones - 2 total






33. 24 hours before end of estrus cycle






34. Earlier you castrate a male - the easier it is on the animal. the longer you wait - death rates increase






35. Animals which have many estrous periods during certain periods per year (ex: mare - ewe)






36. 336 days






37. 1-2 days






38. Animals which have only one estrous cycle (ex: dog - fox)






39. 1. sperm is not implanted in egg until hours after breeding. 2. fetal growth has not yet finished.






40. Animal which has been castrated after puberty






41. Parturition is controlled by...






42. 114 days






43. 24 hours before end of estrus cycle






44. Can survive ~7 days in cow. vast majority <48 hours






45. Why does estrus happen before ovulation?






46. To remove/separate testicles from animal's body before animal reaches puberty






47. Knife-loose ~1wk of growth. band-loose ~2wks of growth.






48. Located directly in front of the cervix. fertilized egg implants here. connected to two uterine horns. implantation occurs on the same side as ovulation occurred.






49. (FSH) helps to regulate puberty - needed every day - stimulates the sertoli cells to produce nutrients for the sperm






50. Produce testosterone. located between the seminiferous tubules